BDD electrode wastewater treatment device

Abstract

The utility model discloses a BDD electrode wastewater treatment device, which solves the technical problem that the wastewater electrolysis effect is poorer as the flowability of wastewater in an electrolytic bath is poorer when part of existing wastewater treatment devices applying BDD electrodes are used. Comprising a support frame, a plurality of wastewater treatment tanks distributed on the support frame in parallel, and two wastewater electrolysis mechanisms which are distributed in the wastewater treatment tanks up and down and are respectively connected with an external power supply. In the whole process of carrying out electrolytic treatment on the wastewater, the wastewater sequentially flows through the wastewater treatment tanks on the support frame according to the distribution sequence of the wastewater treatment tanks on the support frame from top to bottom, and is electrolyzed by the BDD anode plates and the BDD cathode plates in the wastewater treatment tanks after flowing into the wastewater treatment tanks, so that the wastewater is electrolyzed by the BDD anode plates and the BDD cathode plates in the wastewater treatment tanks; according to the whole process of carrying out electrolysis treatment on the wastewater, the wastewater is transferred and flows for multiple times, so that the flowability of the wastewater is improved, and the electrolysis effect of the wastewater is enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, specifically relating to a BDD electrode wastewater treatment device. Background Technology

[0002] Boron-doped diamond thin-film (BDD) electrodes are ideal electrode materials for the electrochemical degradation treatment of high-concentration organic wastewater. They can directly or indirectly oxidize organic pollutants in water into non-toxic and harmless inorganic substances (such as carbon dioxide and water), thereby purifying the wastewater. Wastewater treatment devices using BDD electrodes mainly consist of a power supply, an electrolytic cell, and the BDD electrode. After the power supply supplies electricity to the BDD electrode, the BDD electrode electrolyzes the wastewater in the electrolytic cell to oxidize the organic pollutants within it.

[0003] In some existing wastewater treatment devices that use BDD electrodes, the wastewater to be treated is first discharged into the electrolytic cell. After the wastewater in the electrolytic cell is electrolyzed and decontaminated, the decontaminated water in the electrolytic cell is discharged. During the electrolysis of the wastewater in the electrolytic cell by the BDD electrode, the flow of the wastewater in the electrolytic cell is poor. This may result in the wastewater in the electrolytic cell that is far away from the BDD electrode not being fully electrolyzed, resulting in poor wastewater electrolysis effect and reduced wastewater purification level. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a BDD electrode wastewater treatment device, which solves the technical problem that the wastewater has poor flow in the electrolytic cell when using some existing wastewater treatment devices that use BDD electrodes, resulting in poor wastewater electrolysis effect.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A BDD electrode wastewater treatment device includes a support frame, several wastewater treatment tanks arranged side by side on the support frame, and two wastewater electrolysis mechanisms arranged vertically within the wastewater treatment tanks and respectively connected to an external power source; the lower wastewater treatment tank is connected to the upper wastewater treatment tank, the highest wastewater treatment tank on the support frame is provided with an inlet pipe, and the lowest wastewater treatment tank on the support frame is provided with an outlet pipe.

[0007] Furthermore, the wastewater electrolysis mechanism includes two BDD anode plates arranged in parallel within the wastewater treatment tank, a BDD cathode plate located between the two BDD anode plates, and a separating mechanism located between two adjacent BDD anode plates and BDD cathode plates to separate the BDD anode plates and BDD cathode plates; the BDD anode plates are connected to the positive terminal of an external power source, and the BDD cathode plates are connected to the negative terminal of an external power source.

[0008] Furthermore, the separating mechanism includes an anode plate partition and a cathode plate partition connected between two adjacent BDD anode plates and BDD cathode plates, and several support pipes fixed between the anode plate partition and the cathode plate partition; the BDD anode plate is attached to the anode plate partition, and the BDD cathode plate is attached to the cathode plate partition.

[0009] Furthermore, a first slot is provided on the anode plate partition, and a second slot is provided on the cathode plate partition.

[0010] Furthermore, a first solenoid valve is installed on the inlet pipe, a second solenoid valve is installed on the outlet pipe, and a water supply pipe is connected between two adjacent wastewater treatment tanks, with a third solenoid valve installed on the water supply pipe.

[0011] Furthermore, a column is provided inside the wastewater treatment tank, and an electrolytic cell is formed between the outer wall of the column and the inner wall of the wastewater treatment tank. The wastewater electrolysis mechanism is located inside the electrolytic cell.

[0012] Furthermore, the top of the wastewater treatment tank is equipped with an exhaust pipe that is connected to the electrolytic cell.

[0013] Furthermore, the wastewater electrolysis mechanism has a notch that connects to the electrolytic cell.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model has a simple structure, a scientific and reasonable design, and is easy to use. In the entire process of wastewater electrolysis treatment, the wastewater flows sequentially through each wastewater treatment tank on the support frame, arranged from top to bottom. After flowing into each wastewater treatment tank, it undergoes electrolysis through the BDD anode and cathode plates, resulting in the oxidation of organic pollutants in the wastewater into non-toxic and harmless substances. The entire process of wastewater electrolysis treatment in this utility model involves multiple transfers and flows of the wastewater, improving its fluidity and enhancing the electrolysis effect. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the structure of this utility model.

[0017] Figure 2 This is a top view of the wastewater electrolysis unit located inside the wastewater treatment tank.

[0018] Figure 3 for Figure 2 AA-direction cross-section diagram.

[0019] Figure 4 for Figure 2 BB-direction cross-section view.

[0020] Figure 5 This is a schematic diagram showing the support plate located inside the electrolytic cell.

[0021] Figure 6 This is a schematic diagram of the anode plate separator.

[0022] Figure 7 This is a schematic diagram of a BDD anode plate.

[0023] Figure 8 This is a schematic diagram of the cathode plate separator.

[0024] Figure 9 This is a schematic diagram of a BDD cathode plate.

[0025] Figure 10 This is a sectional view of the support frame.

[0026] Figure 11 This is a sectional view of the bracket.

[0027] Figure 12 This is a top view of the bracket.

[0028] Figure 13 This is a schematic diagram showing the separation mechanism located between adjacent BDD anode and BDD cathode plates.

[0029] The names corresponding to the reference numerals in the attached figures are as follows:

[0030] 1-Support frame, 2-Inlet pipe, 3-Outlet pipe, 4-Water supply pipe, 5-Third solenoid valve, 6-First solenoid valve, 7-Second solenoid valve, 8-Wastewater treatment tank, 9-BDD anode plate, 10-BDD cathode plate, 11-Anode plate partition, 12-Cathode plate partition, 13-Support through pipe, 14-First through hole, 15-Second through hole, 16-Third through hole, 17-Fourth through hole, 18-First slot, 19-Second slot, 20-Column, 21-Electrolytic cell, 22-Exhaust pipe, 23-Notch, 24-Insulating bolt, 25-Support plate, 26-Threaded blind hole, 27-Cathode conductor, 28-Anode conductor, 29-First sealing ring, 30-Second sealing ring, 31-Base, 32-Bracket, 33-Connecting column, 34-Support column, 35-Mounting through hole. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; of course, they can also refer to a mechanical connection or an electrical connection; furthermore, they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] like Figure 1-13 As shown, the present invention provides a BDD electrode wastewater treatment device, which solves the technical problem that the wastewater has poor flow in the electrolytic cell, resulting in poor wastewater electrolysis effect, in some existing wastewater treatment devices that use BDD electrodes.

[0035] This utility model includes a support frame 1, several wastewater treatment tanks 8 arranged side by side on the support frame 1, and two wastewater electrolysis mechanisms arranged vertically inside the wastewater treatment tanks 8 and respectively connected to an external power source; the lower wastewater treatment tank 8 is connected to the upper wastewater treatment tank 8, the highest wastewater treatment tank 8 on the support frame 1 is provided with an inlet pipe 2, and the lowest wastewater treatment tank 8 on the support frame 1 is provided with an outlet pipe 3.

[0036] The inlet pipe 2 is connected to the interior of the highest wastewater treatment tank 8 on the support frame 1, and the outlet pipe 3 is connected to the interior of the lowest wastewater treatment tank 8 on the support frame 1. The inlet pipe 2 is used to input the external wastewater to be treated into the wastewater treatment tank 8 at the highest position on the support frame 1, and the outlet pipe 3 is used to discharge the wastewater after electrolytic treatment by several wastewater treatment tanks 8 on the support frame 1 to the next external wastewater treatment device.

[0037] This utility model has a simple structure, a scientific and reasonable design, and is easy to use. In the entire process of wastewater electrolysis treatment, the wastewater flows sequentially through each wastewater treatment tank on the support frame, arranged from top to bottom. After flowing into each wastewater treatment tank, it undergoes electrolysis through the BDD anode and cathode plates, resulting in the oxidation of organic pollutants in the wastewater into non-toxic and harmless substances. The entire process of wastewater electrolysis treatment in this utility model involves multiple transfers and flows of the wastewater, improving its fluidity and enhancing the electrolysis effect.

[0038] The wastewater electrolysis mechanism of this utility model includes two BDD anode plates 9 arranged in parallel within a wastewater treatment tank 8, a BDD cathode plate 10 disposed between the two BDD anode plates 9, and a separating mechanism disposed between two adjacent BDD anode plates 9 and BDD cathode plates 10 to separate the BDD anode plates 9 and BDD cathode plates 10; the BDD anode plates 9 are connected to the positive terminal of an external power source, and the BDD cathode plates 10 are connected to the negative terminal of an external power source.

[0039] The wastewater treatment tank 8 has a cathode conductor 27 and an anode conductor 28 sealed and connected to an external power source on its side wall. One end of the cathode conductor 27 is connected to the BDD cathode plate 10, and the other end is connected to the negative terminal of the external power source. One end of the anode conductor 28 is connected to the BDD anode plate 9, and the other end is connected to the positive terminal of the external power source. The wastewater treatment tank 8 has a first sealing ring 29 for sealing the cathode conductor 27 and a second sealing ring 30 for sealing the anode conductor 28 on its side wall.

[0040] After an external power source supplies power to the BDD anode and cathode plates 10, the BDD anode and cathode plates electrolyze the wastewater in the electrolytic cell 21. A separating mechanism is used to separate the BDD anode and cathode plates 10, preventing them from contacting each other and ensuring that the BDD anode and cathode plates 10 can properly electrolyze the wastewater in the electrolytic cell 21 after being energized.

[0041] The separation mechanism includes an anode plate partition 11 and a cathode plate partition 12 connecting two adjacent BDD anode plates 9 and BDD cathode plates 10, and several support pipes 13 fixedly disposed between the anode plate partition 11 and the cathode plate partition 12. The BDD anode plate 9 is in contact with the anode plate partition 11, and the BDD cathode plate 10 is in contact with the cathode plate partition 12. The support pipes 13 are used to maintain a certain gap between the anode plate partition 11 and the cathode plate partition 12, thereby maintaining a certain gap between the BDD anode plate 9 and the BDD cathode plate 10. The anode plate partition 11 has a first slot 18, and the cathode plate partition 12 has a second slot 19. This ensures that the wastewater in the electrolytic cell flows between the BDD anode plate 9 and the BDD cathode plate 10, ensuring that the BDD anode plate 9 and the BDD cathode plate 10 can normally electrolyze the wastewater in the electrolytic cell 21 after being energized.

[0042] The anode plate 11 has several first through holes 14, and the cathode plate 12 has several second through holes 15 corresponding to the first through holes 14. A support pipe 13 is fixedly connected between the corresponding first through holes 14 and second through holes 15. The BDD anode plate 9 has several third through holes 16 corresponding to the first through holes 14, and the BDD cathode plate 10 has several fourth through holes 17 corresponding to the second through holes 15. Insulating bolts 24 are threaded into the corresponding first through holes 14, second through holes 15, support pipe 13, third through holes 16, and fourth through holes 17, and are threaded into the electrolytic cell 21. The wastewater electrolysis mechanism is thus fixed within the electrolytic cell 21 by the threaded connection of the insulating bolts 24, preventing displacement of the wastewater electrolysis mechanism under water flow impact.

[0043] An electrolytic cell 21 is provided with a support plate 25. The support plate 25 has a threaded blind hole 26 that is compatible with the insulating bolt 24. The insulating bolt 24 is threaded into the threaded blind hole 26.

[0044] This invention features a first solenoid valve 6 on the inlet pipe 2, a second solenoid valve 7 on the outlet pipe 3, and a water supply pipe 4 connecting adjacent wastewater treatment tanks 8, with a third solenoid valve 5 on the water supply pipe 4. When electrolyzing wastewater, opening the first solenoid valve 6 allows the wastewater to be treated to enter the highest wastewater treatment tank 8 on the support frame 1. After electrolysis by several wastewater treatment tanks 8 on the support frame 1, opening the second solenoid valve 7 allows the electrolyzed wastewater to be discharged from the lowest wastewater treatment tank 8 on the support frame 1 to the next wastewater treatment device.

[0045] Wastewater flows sequentially through several wastewater treatment tanks on the support frame 1, arranged from top to bottom according to the wastewater treatment tanks 8. Each wastewater treatment tank 8 electrolyzes the flowing wastewater in turn. After the BDD anode plate 9 and BDD cathode plate 10 in the wastewater treatment tank 8 electrolyze the incoming wastewater for a period of time, the wastewater flows into the lower wastewater treatment tank 8 for further electrolysis. By opening the third solenoid valve 5 on the water supply pipe 4, wastewater can flow from the upper wastewater treatment tank 8 to the lower wastewater treatment tank 8.

[0046] After the wastewater in the lower wastewater treatment tank 8 is discharged, the wastewater in the upper wastewater treatment tank 8 is discharged into the emptied lower wastewater treatment tank 8 through the corresponding water supply pipe 4. After the wastewater in the highest wastewater treatment tank 8 on the support frame 1 is discharged, new wastewater to be treated is transported to the highest wastewater treatment tank 8 on the support frame 1 through the water inlet pipe 2. Thus, this utility model can continuously electrolyze the wastewater to be treated.

[0047] The wastewater treatment tank 8 of this utility model is provided with a column 20. An electrolytic cell 21 is formed between the outer wall of the column 20 and the inner wall of the wastewater treatment tank 8. The wastewater electrolysis mechanism is located in the electrolytic cell 21.

[0048] After the wastewater flows into the wastewater treatment tank 8, it is electrolyzed in the electrolytic cell 21 by the corresponding BDD anode plate 9 and BDD cathode plate 10.

[0049] The wastewater treatment tank 8 of this utility model is provided with an exhaust pipe 22 at the top, which is connected to the electrolytic cell 21. In this way, the gas generated by the electrolysis of wastewater in the wastewater treatment tank 8 can be discharged to the external waste gas treatment device through the exhaust pipe 22.

[0050] The wastewater electrolysis mechanism of this utility model has a notch 23 that communicates with the electrolytic cell 21. When wastewater flows from the upper wastewater treatment tank 8 to the lower wastewater treatment tank 8, the wastewater first passes through the notch 23 and then flows into the electrolytic cell 21 of the lower wastewater treatment tank 8. The wastewater in the electrolytic cell 21 flows between the adjacent BDD anode plate 9 and BDD cathode plate 10 through the notch 23, ensuring that the BDD anode plate 9 and BDD cathode plate 10 can normally electrolyze the wastewater in the electrolytic cell 21 after being energized.

[0051] This utility model's support frame includes a base 31, several brackets 32 arranged side-by-side on the base 31 and corresponding one-to-one with the wastewater treatment tank 8, connecting columns 33 connecting adjacent brackets 32, and two support columns 34 fixedly mounted on the base 31. The lowest bracket 32 ​​on the base 31 passes through the two support columns 34. Each bracket 32 ​​has a mounting through hole 35, and the connecting column 33 movably passes through the mounting through holes 35 of two adjacent brackets 32. The support column 34 movably passes through the mounting through hole 35 of the lowest bracket 32.

[0052] The bracket 32 ​​and the connecting column 33 are detachable from the base 31, which facilitates the side-by-side installation of the wastewater treatment tank 8 on the support frame 1.

[0053] Finally, it should be noted that the above embodiments are merely preferred embodiments of this utility model used to illustrate the technical solutions of this utility model, and are not intended to limit it, nor are they intended to limit the patent scope of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. That is to say, any changes or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but whose technical problems are still consistent with those of this utility model, should be included within the protection scope of this utility model. In addition, the direct or indirect application of the technical solutions of this utility model to other related technical fields are similarly included within the patent protection scope of this utility model.

Claims

1. A BDD electrode wastewater treatment device, characterized in that, It includes a support frame (1), several wastewater treatment tanks (8) arranged side by side on the support frame (1), and two wastewater electrolysis mechanisms arranged vertically inside the wastewater treatment tanks (8) and connected to an external power source respectively; the wastewater treatment tank (8) located at the lower position is connected to the wastewater treatment tank (8) located at the upper position, the wastewater treatment tank (8) at the highest position on the support frame (1) is provided with an inlet pipe (2), and the wastewater treatment tank (8) at the lowest position on the support frame (1) is provided with an outlet pipe (3).

2. The BDD electrode wastewater treatment device according to claim 1, characterized in that, The wastewater electrolysis mechanism includes two BDD anode plates (9) arranged in parallel within the wastewater treatment tank (8), a BDD cathode plate (10) arranged between the two BDD anode plates (9), and a separation mechanism arranged between two adjacent BDD anode plates (9) and BDD cathode plates (10) to separate the BDD anode plates (9) and BDD cathode plates (10); the BDD anode plates (9) are connected to the positive terminal of the external power supply, and the BDD cathode plates (10) are connected to the negative terminal of the external power supply.

3. The BDD electrode wastewater treatment device according to claim 2, characterized in that, The separation mechanism includes an anode plate partition (11) and a cathode plate partition (12) connecting two adjacent BDD anode plates (9) and BDD cathode plates (10), and several support pipes (13) fixed between the anode plate partition (11) and the cathode plate partition (12); the BDD anode plate (9) is attached to the anode plate partition (11), and the BDD cathode plate (10) is attached to the cathode plate partition (12).

4. The BDD electrode wastewater treatment device according to claim 3, characterized in that, The anode plate partition (11) has a first slot (18) and the cathode plate partition (12) has a second slot (19).

5. The BDD electrode wastewater treatment device according to claim 1, characterized in that, The inlet pipe (2) is equipped with a first solenoid valve (6), the outlet pipe (3) is equipped with a second solenoid valve (7), and the two adjacent wastewater treatment tanks (8) are connected by a water supply pipe (4), which is equipped with a third solenoid valve (5).

6. The BDD electrode wastewater treatment device according to claim 1, characterized in that, The wastewater treatment tank (8) is equipped with a column (20), and an electrolytic cell (21) is formed between the outer wall of the column (20) and the inner wall of the wastewater treatment tank (8). The wastewater electrolysis mechanism is located inside the electrolytic cell (21).

7. The BDD electrode wastewater treatment device according to claim 6, characterized in that, The top of the wastewater treatment tank (8) is equipped with an exhaust pipe (22) that is connected to the electrolytic cell (21).

8. The BDD electrode wastewater treatment device according to claim 6, characterized in that, The wastewater electrolysis mechanism has a notch (23) that connects to the electrolysis cell (21).

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